Thermophotovoltaic Devices and Photonics Modeling

Thomas, Richard M.; Wernsman, B.

doi:10.1364/opn.12.8.000040

Cited by 5 publications

(3 citation statements)

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“…However, in this case, Monte Carlo ray trace computer programs are used. These programs have been used for cases 2 and 3 spectral control studies [4,10].…”

Section: Importance Of and Approaches To Spectral Controlmentioning

confidence: 99%

Thermophotovoltaic system configurations and spectral control

Fraas

Avery

Huang

et al. 2003

Semicond. Sci. Technol.

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Thermophotovoltaic (TPV) systems can be characterized by several different parameters including system electrical conversion efficiency, photovoltaic cell electric power density, infrared (IR) emitter temperature and system costs. One way of dividing TPV systems into three categories is via high (T >1400 • C), medium (T between 1400 • C and 1100 • C) and low (T < 1100 • C) IR emitter temperature. In the high T category, silicon cells can be used with porous rare earth oxide selective emitters operating at over 1400 • C. For low T emitters, cells with band gaps below 0.6 eV are being studied. These cells are typically made with ternary and quaternary compounds using MOCVD. They are being developed for space and military applications where these cells operate at temperatures of 30 • C and below. These systems can potentially have efficiencies over 15%. Diffused junction GaSb cells can be used with IR emitters in the mid-temperature range. These cells can potentially be made at low cost in high-volume production. With emitter temperatures of 1250 • C, these cells operate with power densities of 1 W cm −2 . These cells can be operated at 60 • C for combined heat and power applications. Systems using these cells can have electrical conversion efficiencies well over 10%. Spectral control is another important parameter characterizing TPV system configurations. While various means of high efficiency spectral control for low-and mid-temperature systems have now been demonstrated with single-cell experiments, the frontier now lies in integrating cell arrays, heat sources and IR emitters with spectral control into complete systems.

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“…However, in this case, Monte Carlo ray trace computer programs are used. These programs have been used for cases 2 and 3 spectral control studies [4,10].…”

Section: Importance Of and Approaches To Spectral Controlmentioning

confidence: 99%

Thermophotovoltaic system configurations and spectral control

Fraas

Avery

Huang

et al. 2003

Semicond. Sci. Technol.

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“…In each of the TPV systems we have described, the effect of the individual components (radiator, photonic cavity, spectral control, TPV device, cooling system, etc) on the system efficiency and power density is very complex. Ray tracing codes have been used to accurately model system performance [19,20], but comparison between systems is difficult without rerunning the code with the alternative system components. Comparison between systems, including modifications to existing systems, can be performed more swiftly using analytical expressions.…”

Section: Tpv System Cavity Testmentioning

confidence: 99%

“…This methodology separates the effects of the electrical, thermal and spectral system components, using a cavity correction factor to modify the photonic flux on the TPV devices caused by the cavity configuration. The cavity correction factor is still derived using a ray tracing code [20], however subsequent changes to the electrical and thermal properties of the TPV device can be made without code modification, simplifying the analysis of the system [21].…”

Section: Tpv System Cavity Testmentioning

confidence: 99%

Thermophotovoltaic system testing

Mahorter

Wernsman

Thomas

et al. 2003

Semicond. Sci. Technol.

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To illustrate the variety and complexity of thermophotovoltaic (TPV) system designs, the present status of selected systems, ranging in power output from 50 W to 2 kW, is reviewed. The design and analysis of each of these power systems is complex due to the interactions among the radiator, photonic cavity and filter/semiconductor device elements. To draw meaningful conclusions and aid the development of new power systems, a methodology for measuring and predicting the performance of system designs is required. To first order, this includes an understanding of the semiconductor diode characteristics, emitter/filter spectra and radiative properties of the system components.

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Heat Transfer Theory and System Modelling

Bauer¹

2011

Thermophotovoltaics

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Thermophotovoltaic Devices and Photonics Modeling

Cited by 5 publications

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Thermophotovoltaic system configurations and spectral control

Thermophotovoltaic system configurations and spectral control

Thermophotovoltaic system testing

Heat Transfer Theory and System Modelling

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